I just came up with this. Basically, in your post you respond to the previous post's what-if and then write one for the next post
EXAMPLE:
Post 1: What if you were Vanaduke?
Post 2: I would invade Haven. What if you were an admin?
You get the idea.
So to start it:
What if you were a gremlin?
I would build stuff
What if you were the core?